I was recently writing some tests that had a mocked method that I wanted to return the same value several times in a row from. It turns out, NSubstitute can do this out of the box. While Returns takes a value T, if you look at its method signature, you’ll see it takes another argument …
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Here are the slides for my talk for the Kansas City Microsoft Azure Meetup on Nov 8, 2023:
If you’ve ever made a test in xUnit with something like 8+ InlineDatas and thought that there has to be a better way… Well, there is! The Xunit.Combinatorial package by Andrew Arnott allows you to specify values in multiple CombinatorialValues attributes, then will run a separate test for each possible combination of those values. It’s …
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Here are the slides for my talk for DevOps Days Indianapolis 2023:
Here is the video, slides and Github repository for my talk for JetBrains .NET Day Online ’23. Video Github repository https://github.com/danielwarddev/DotNetDays2023Bookstore Slides
There is a Moq counterpart to this post: Using Moq to verify that an object or list was passed to a method. Click there if you would like to see how to do this using Moq. Overview Sometimes, when using Arg.Is(), we would like the argument to look like a certain object, or worse, a list …
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There is a Moq counterpart to this post: How to mock HttpClient in C# using Moq. Click there if you would like to see how to do this using Moq. This post will cover 3 different ways to mock HttpClient using NSubstitute and give pros and cons for each: Create a fake HttpMessageHandler class Set …
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I recently attended DevOps Days Austin (which was fantastic and I highly recommend it) and gave an ignite talk there. A recurring activity in DevOpsDays conferences is something called open table or open space, where anyone from the conference can come up to some kind of whiteboard, wall of sticky notes, spreadsheet, etc. and write down …
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This is part 2 in a 2-part series: Part 1: How to use IAsyncEnumerable in C# for paged APIs. Part 2: How to test and mock IAsyncEnumerable in C# Note that this post, like the last one, will use the use case of making HTTP calls, but the same logic in it will hold true …
This is part 1 in a 2-part series: Part 1: How to use IAsyncEnumerable in C# for paged APIs Part 2: How to test and mock IAsyncEnumerable in C# Ever since C# 8, we’ve been able to create asynchronous enumerables using IAsyncEnumerable. This is a handy feature to have when the work being done to …
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